This is a profile of my Peavey Classic 30 amp on the distorted channel mic'd with an sm57 off axis. I used an external mic preamp for this as I just can't seem to get good results with the KPA mic preamp (probably because I'm not profiling loud enough) , so I used my Joe Meek VC3Q.
I have a G12H speaker in my c30 as I swapped out the stock blue marvel a while ago.
I was aiming to emulate the Jimmy Page "live" tone from circa '73 with this, and in a mix it's not too shabby I think !
and here's what it sounds like (except room space added after)